用c写的BP神经网络人脸识别，可以识别姿势，表情，是否带太阳镜。gcc下执行通过，其中含有说明文件，注意编译和执行时放好文件夹的路径-C write with the BP neural network face recognition, can recognize gestures, facial expressions, whether with sunglasses. performed by gcc, which contains documentation, pay attention